On the automorphism group of the countable dense circular order
نویسندگان
چکیده
منابع مشابه
On the automorphism group of the countable dense circular order
Let (C, R) the countable dense circular ordering, and G its automorphism group. It is shown that certain properties of group elements are first order definable in G, and these results are used to reconstruct C inside G, and to demonstrate that its outer automorphism group has order 2. Similar statements hold for the completion C.
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ژورنال
عنوان ژورنال: Fundamenta Mathematicae
سال: 2009
ISSN: 0016-2736,1730-6329
DOI: 10.4064/fm204-2-1